Combined air supply line and manifold for aerating a pond or lake on fish farms



FIG. 1 is a front elevational view of combined air supply line and manifold for aerating a pond or lake on fish farms showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is an opposite side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a top rear perspective view thereof, on an enlarged scale. 

The ornamental design for combined air supply line and manifold for aerating a pond or lake on fish farms, as shown. 